Road surfacing binding strip



March 6, 1934. c. F. GREEN 1,950,299

ROAD SURFAC-ING BINDING STRIP Filed March 8, 1952 S- /7 m A? EI- m /7 /5 /Z wwwvtm 3 ar neliud I? grew? Patented Mar. 6, 1934 UNITED STATES PATENT OFFICE 1 Claim.

The invention relates to road construction and the object of the invention is to provide a prepared and pre-formed binding strip of approximately the same height as the thickness of the road surfacing material which may be secured in position by any suitable means and serves as a gage during the laying of the surfacing material of the road and is left in place as a binding edge to prevent raveling or breaking off of the edge of the road surface, all as will be hereinafter more fully described and claimed.

Referring to the accompanying drawing which is made a part hereof and on which similar reference characters indicate similar parts,

Figure 1 is a transverse sectional view of a road surface showing the strip applied thereto,

Figure 2, a similar view showing one method of anchoring the strip in position,

Figure 3, a sectional view of a road surface showing still another manner of anchoring the strip in position, and

Figures 4 and 5 show still other ways of securing the binding strip in position.

In the drawing numeral indicates the surfacing layer of a road having a sub-base 11. Numeral 12 indicates the binding strips having inwardly projecting flanges 13 which are set flush with the upper surface and the bottom of the surfacing material of the road. The U-shaped member 12 is anchored to the sub-base 11 by means of pins or pegs 14 driven therein and which are covered and held in place by the surfacing material 10.

For the purpose of description a channel shaped binding strip has been shown and described but this does not necessarily limit the invention to a single specific form but it is possible to vary the shape and style of the strip and yet accomplish the purposes set forth and disclosed in the application.

In Figure 2 in lieu of the pins 14, as shown in Figure 1 a tie or anchoring element 15 of any suitable character is secured in any suitable manner to the center of the binding strip 12 and is placed in the body of the surfacing material and holds the binding strip in place.

Figure 3 is quite similar to Figure 2 and this particular showing discloses a similar tie or anchoring element 16 under the surfacing material.

Figures 4 and 5 show the tie 17 extending through the surfacing material and attached in anysuitable manner to the binding strips on each side of the road surfacing material, and Figure 5 shows an additional tie 18 placed under the surface material connecting the strips which are positioned at each side.

In the drawing there are disclosed a number of ways in which the binding strip may be anchored or secured in place and it may be clearly seen that various other combinations may be worked out even to the extent of having prongs or flanges formed integrally with the strips and by means of which the strips may be anchored securely in position.

The binding strip may be either a continuous strip or intermittent and may be formed of metal or other material suitable for use with plastic, semi-plastic or non-rigid surfacing material, such as asphalt, asphaltic concrete, tar or other oil compositions or any other material similarly used for surfacing or finishing roads. The sectional binding strip is easily applied in the following manner: After the road has been put in proper shape for the surfacing material and the subgrade has been laid the sectional binding strips are secured in any of the ways pointed out above and the surfacing material is poured between them. The binding strips not only serve as a gage during construction but is so anchored and left in place that it serves to prevent raveling or breaking off of the finished road surface edge.

The binding strip 12 may be easily removed and renewed for the purpose of road repairs or the like and it is only necessary to tear up that portion which needs repairing without removing very much material as would be the case where concrete edges or curbing are used or where the edges are formed of cut stone or brick.

It may be seen that the binding strip as described above is superior to and cheaper than the present methods of pouring a concrete edge or setting one of cut stone or brick.

It will be obvious to those skilled in the art that various changes may be made in my device without departing from the spirit of the invention and therefore I do not limit myself to what is shown in the drawing and described in the specification, but only as indicated by the appended claim.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is:

An edging strip for the finishing surface of a road comprising an element having inwardly projecting flanges adapted to be set flush with the top and bottom surfaces of said finishing surface, and means completely incorporated within said finishing surface and attached to said element for holding said element in fixed position along the edge thereof to prevent breaking of the same, substantially as set forth.

CORNELIUS F. GREEN. 

